Eliminate superfluous call to _convert_format, since the format objects themselves should already know their Numpy record format...
Eliminate superfluous call to _convert_format, since the format objects themselves should already know their Numpy record format...

git-svn-id: 5305e2c1a78737cf7dd5f8f44e9bbbd00348fde7@2338 ed100bfc-0583-0410-97f2-c26b58777a21

spacetelescope/PyFITS,embray/PyFITS,embray/PyFITS,spacetelescope/PyFITS,embray/PyFITS,embray/PyFITS